Anti-Washout admixture increse the cohesion of the concrete in a way that significantly reduces the washing out of cementitious material and sand from fresh concrete placed under water. Anti-washout admixtures are often used in conjunction with superplasticisers to produce flowing self leveling concrete to aid placing and compaction under water. 

CHRYSO®Aquabeton L10
CHRYSO® Aquabeton L10 is a new generation liquid anti-washout admixture designed for the underwater placement of concrete and grout.
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